Solar PV home system includes different components that should be selected according to your system type and application. The major components are PV module, solar charge controller, inverter, battery and assortment of balance of system hardware, including wiring, mounting structure, protection equipments. The system HREIPL offers to clients from 20W to kilowatt. The system can pay between 5-7 years. Much depends on overall cost of system, which is the type and size of installation.The Size of Solar home system depends on the amount of power that is required (watt), the amount of time it is used (hours), and the amount of solar energy available.